JP7447185B2 - Composite material structure manufacturing device and composite material structure manufacturing method - Google Patents

Description

The present disclosure relates to a composite material structure manufacturing apparatus and a composite material structure manufacturing method.

A method for manufacturing parts made of a composite material of resin and fiber is to impregnate a fiber base material shaped into a predetermined shape with resin, and then harden the resin impregnated into the fiber base material. It has been known. In this method, the fiber base material is covered with a bag or cowl plate, and resin is supplied to the fiber base material covered with the bag or cowl plate, and the gas in the space where the fiber base material is placed is exhausted (vacuum suction ) to pressurize the fiber base material and impregnate it with resin.

However, when manufacturing parts with undercut shapes or curved parts, if the fiber base material is covered with a bag, bridging may occur and the fiber base material may not be able to be properly pressurized. . Furthermore, when covering a fiber base material with a cowl plate, when trying to attach the cowl plate to the fiber base material, the fibers will be dragged. In order to solve such problems, a method is known in which an indenter having a substantially triangular cross section is used on the fiber base material and pressure is applied indirectly via the indenter (for example, Patent Document 1).

Patent Document 1 describes a method in which a component 32 is covered with a vacuum film 10 and pressure is applied indirectly to the component 32 via a hollow mandrel 78 having a substantially triangular cross section.

US Patent No. 10213970

When using a triangular indenter, the surface of the fiber base material that comes into contact with the indenter cannot be vacuumed directly. Therefore, the gas (for example, air or volatile gas) contained in the portion of the fiber base material that comes into contact with the indenter is guided to the discharge section through the inside of the fiber base material. In this case, if the resin impregnates the middle part of the gas flow path, the gas flow will be blocked at that part, and the blocked gas will not be discharged from the discharge part and will remain in the fiber base material. There are cases where this happens. If gas remains in the fiber base material, the resin will not be impregnated into the relevant portion, which may lead to a decrease in the quality of the completed part.

The present disclosure has been made in view of these circumstances, and provides a composite material structure manufacturing apparatus and a composite material structure manufacturing method that can improve the quality of the manufactured composite material structure. The purpose is to

In order to solve the above problems, the composite material structure manufacturing apparatus and the composite material structure manufacturing method of the present disclosure employ the following means.
A composite material structure manufacturing apparatus according to one aspect of the present disclosure is a composite material structure manufacturing apparatus that manufactures a composite material structure by impregnating a fiber base material shaped into a predetermined shape with a resin. A space is formed inside, a covering part provided in the space and covering the fiber base material, a supply part supplying resin to the fiber base material, and a discharge formed in the covering part. a discharge part for discharging gas from the space through a hole; and a discharge part provided in the space between the covering part and the fiber base material, and the discharge part discharging gas from the fiber base material. a jig for pressurizing the fiber base material, the jig has a fiber base material facing surface facing the fiber base material, a covering part facing surface facing the covering part, and the fiber base material facing surface A through hole is formed that connects the surface facing the covering portion.

A method for manufacturing a composite material structure according to one aspect of the present disclosure includes a manufacturing device for a composite material structure that manufactures a composite material structure by impregnating a fiber base material shaped into a predetermined shape with a resin. A method for manufacturing a composite material structure using a method, wherein the manufacturing apparatus includes a space formed inside, a coating part provided in the space that covers the fiber base material, and a resin material for the fiber base material. a supply section that supplies gas, a discharge section that discharges gas from the space through a discharge hole formed in the covering section, and a discharge section that is provided in the space between the covering section and the fiber base material, a jig that pressurizes the fiber base material by discharging gas from the discharge part, and the jig has a fiber base material facing surface facing the fiber base material and facing the covering part. A through hole is formed to connect the fiber base material facing surface and the covering portion facing surface, and a step of exhausting gas from the discharge portion via the through hole is provided.

According to the present disclosure, the quality of a manufactured composite material structure can be improved.

FIG. 1 is a schematic vertical cross-sectional view showing a manufacturing apparatus for a composite material structure according to a first embodiment of the present disclosure. FIG. 7 is a schematic vertical cross-sectional view showing a manufacturing apparatus for a composite material structure according to a modification of the first embodiment of the present disclosure. FIG. 7 is a schematic vertical cross-sectional view showing a manufacturing apparatus for a composite material structure according to a modification of the first embodiment of the present disclosure. FIG. 2 is a schematic vertical cross-sectional view showing a manufacturing apparatus for a composite material structure according to a second embodiment of the present disclosure. FIG. 7 is a schematic vertical cross-sectional view showing a manufacturing apparatus for a composite material structure according to a third embodiment of the present disclosure.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a composite material structure manufacturing apparatus and a composite material structure manufacturing method according to the present disclosure will be described below with reference to the drawings.

[First embodiment]
Hereinafter, a first embodiment of the present disclosure will be described using FIGS. 1 to 3.
The manufacturing apparatus 10 according to this embodiment is used when manufacturing aircraft parts (for example, stringers, spars, frames, ribs, etc.) made of composite materials. An example of a composite material is carbon fiber reinforced plastic (CFRP), which is a composite of resin and carbon fiber. Note that the parts manufactured by the manufacturing apparatus 10 according to this embodiment are not limited to aircraft parts. For example, it may be a part used in space equipment, automobiles, wind power generation equipment, etc. Furthermore, in the following description, the product manufactured by the manufacturing apparatus 10 will be referred to as a "composite material structure 1."

The manufacturing apparatus according to the present embodiment impregnates a carbon fiber base material shaped into a desired shape (hereinafter referred to as "fiber base material 2") with a liquid resin. This is an apparatus for manufacturing a composite material structure 1 by curing a resin impregnated with a resin.

The composite material structure 1 according to the present embodiment is an elongated member extending in a predetermined direction (the depth direction in FIG. 1 and the like). The composite material structure 1 has a longitudinal length of, for example, about 5 m to 10 m. As shown in FIG. 1, the composite material structure 1 has a cross-sectional shape (hereinafter simply referred to as a "cross-section") when cut along a plane perpendicular to the longitudinal direction (the depth direction in FIG. 1, etc.). It has a hat shape.

The fiber base material 2 has substantially the same shape as the composite material structure 1. That is, the fiber base material 2 has a hat-shaped cross section. In detail, as shown in FIG. 1, the fiber base material 2 includes a pair of flange portions 2a extending in the width direction (left-right direction in FIG. 1 etc.) and a pair of flange portions 2a extending upward from the inner end of each flange portion 2a. It has a web part 2b and a cap part 2c that connects the inner ends of the pair of web parts 2b. The flange portion 2a and the web portion 2b are connected via a curved portion. Further, the web portion 2b and the cap portion 2c are connected via a curved portion.

The fiber base material 2 has a cross-sectional shape that is substantially the same over the entire longitudinal direction. In addition, in FIG. 1 etc., only a part of the fibrous body is illustrated for the sake of illustration. Further, the shapes of the fiber base material and the composite material structure are merely examples, and are not limited thereto.

The manufacturing apparatus 10 includes a mold 11 on which the fiber base material 2 is placed, a cowl plate (covering part) 12 that covers the fiber base material 2 and the mold 11 on which the fiber base material 2 is placed from above, and a fiber base material 2. It includes a triangular indenter (jig) 13 that comes into contact with the material 2, a supply section 14 that supplies resin to the fiber base material 2, and a discharge section 15 that discharges gas from the space covered by the cowl plate 12. ing.

In the mold 11, the fiber base material 2 is placed on the placement surface. The cross-sectional shape of the mounting surface corresponds to the shape of the fiber base material 2. The mold 11 integrally includes a first portion 11a that contacts the flange portion 2a, a second portion 11b that contacts the web portion 2b, and a third portion 11c that contacts the cap portion 2c. Note that the mold 11 and the fiber base material 2 may be in direct contact with each other or may be in contact with each other through some kind of member. Note that the material of the mold 11 may be metal, wood, or resin material.

The second portion 11b is provided with a plurality of supply units 14 that supply resin from the back surface (the surface opposite to the surface on which the fiber base material 2 is placed (placement surface)) toward the placement surface. . The plurality of supply units 14 are arranged in line at predetermined intervals along the vertical direction. Further, the plurality of supply units 14 are arranged side by side at predetermined intervals along the longitudinal direction of the mold 11 (the depth direction of the drawing). Each supply unit 14 supplies liquid resin to the fiber base material 2 .

Further, the third portion 11c is provided with a plurality of supply units 14 that supply resin from the lower surface (the surface opposite to the surface on which the fiber base material 2 is placed (placing surface)) toward the placement surface. ing. The plurality of supply units 14 are arranged side by side at predetermined intervals along the left-right direction. Further, the plurality of supply units 14 are arranged side by side at predetermined intervals along the longitudinal direction of the mold 11 (the depth direction of the drawing). Each supply unit 14 supplies liquid resin to the fiber base material 2 .

The cowl plate 12 is a plate-shaped member. The cowl plate 12 covers the fiber base material 2 placed on the mold 11 and the triangular indenter 13 that comes into contact with the fiber base material 2 from above. The cowl plate 12 has a space formed inside. A fiber base material 2 and a triangular indenter 13 are provided in a space formed inside the cowl plate 12. The cowl plate 12 covers the fiber base material 2 and the triangular indenter 13 provided in the space.

The cowl plate 12 includes a first plate portion 12a facing the first portion 11a of the mold 11, a second plate portion 12b facing the cowl plate facing surface 13c of the triangular indenter 13, and a third portion 11c facing the mold 11. It integrally includes a third plate portion 12c and a step portion 12d that connects the first plate portion 12a and the second plate portion 12b. The second plate portion 12b and the third plate portion 12c are connected via a curved portion.
A cowl plate ventilation sheet 20 is provided on the inner peripheral surface of the cowl plate 12. The cowl plate ventilation sheet 20 is in surface contact with the inner peripheral surface. Specifically, the cowl plate ventilation sheet 20 is in surface contact with the inner peripheral surfaces of a portion of the second plate portion 12b, the third plate portion 12c, and the step portion 12d. The cowl plate ventilation sheet 20 covers the discharge hole 15c from the inside. The cowl plate ventilation sheet 20 is a sheet-like member. The cowl plate ventilation sheet 20 blocks resin and allows gas to pass through. The ends of the cowl plate ventilation sheet 20 are sealed with a seal tape 22.
Further, a cowl plate release sheet 21 is provided between the third plate portion 12c of the cowl plate 12 and the cap portion 2c of the fiber base material 2. The cowl plate release sheet 21 makes it easy to release the cowl plate 12 and the fiber base material 2 from the mold.

The cowl plate 12 is provided with a discharge section 15. Specifically, the second plate portion 12b of the cowl plate 12 is provided with a discharge portion 15. A discharge hole 15c that penetrates the cowl plate 12 in the thickness direction is formed in the second plate portion 12b. The discharge section 15 discharges gas (for example, air or volatile gas) through the discharge hole 15c. The discharge hole 15c is provided approximately at the center of the second plate portion 12b in the vertical direction. Further, the discharge hole 15c is provided between a first through hole 13d and a second through hole 13e formed in the triangular indenter 13, which will be described later, in the vertical direction.

The exhaust part 15 exhausts gas from the space formed inside the cowl plate 12 via the exhaust hole 15c. The discharge part 15 has a discharge pipe 15a inserted into a through hole formed in the second plate part 12b, and a seal part 15b that seals between the discharge pipe 15a and the cowl plate 12. One end of the discharge pipe 15a opens into the space inside the cowl plate 12. The other end of the discharge pipe 15a opens into a space outside the cowl plate 12. The seal portion 15b is provided on the outer peripheral surface of the cowl plate 12.

The triangular indenter 13 is a solid member, and is an elongated member extending in a predetermined direction (the depth direction in FIG. 1 and the like). The triangular indenter 13 is a member having a substantially triangular cross section in the longitudinal direction (a cross section taken along a plane perpendicular to the longitudinal direction). The triangular indenter 13 is provided in a space formed by the cowl plate 12. The triangular indenter 13 is provided between the cowl plate 12 and the fiber base material 2. The triangular indenter 13 pressurizes the fiber base material 2 by discharging gas from the discharge portion 15 . Specifically, the fiber base material 2 is pressed against the mold 11.

The triangular indenter 13 has a flange part facing surface 13a that faces and contacts the inner peripheral surface of the flange part 2a, and a web part facing surface (fiber base material facing surface) 13b that faces and contacts the inner peripheral surface of the web part 2b. It has a cowl plate facing surface (covering portion facing surface) 13c that faces and contacts the inner circumferential surface of the cowl plate 12. The web portion facing surface 13b extends in a curved manner at a substantially right angle from the end of the flange portion facing surface 13a.

The triangular indenter 13 has a first through hole (through hole) 13d and a second through hole (through hole) 13e that connect the web portion facing surface 13b and the cowl plate facing surface 13c. The first through hole 13d and the second through hole 13e are arranged side by side at a predetermined interval in the vertical direction. The first through hole 13d is provided above the discharge hole 15c formed in the cowl plate 12. The second through hole 13e is provided below the discharge hole 15c formed in the cowl plate 12. The first through hole 13d and the second through hole 13e are formed in a straight line.
Further, the first through hole 13d and the second through hole 13e are each arranged in line at a predetermined interval in the longitudinal direction (the depth direction of the page).

An entrance side ventilation sheet (ventilation section) 16 and an entrance side release sheet 17 are provided between the web section facing surface 13b of the triangular indenter 13 and the web section 2b of the fiber base material 2. Specifically, between the web portion facing surface 13b of the triangular indenter 13 and the web portion 2b of the fiber base material 2, an inlet side ventilation sheet 16 and an inlet side release sheet 17 are arranged in order from the triangular indenter 13 side. are arranged in order. The triangular indenter 13 and the fiber base material 2 are in contact with each other via an inlet side ventilation sheet 16 and an inlet side release sheet 17.

The inlet side ventilation sheet 16 is a sheet-like member. The inlet side ventilation sheet 16 blocks resin and allows gas to pass through. The inlet side ventilation sheet 16 is in surface contact with the web portion facing surface 13b of the triangular indenter 13. The entrance side ventilation sheet 16 covers the entrances (openings formed at the ends on the fiber base material 2 side) of the first through hole 13d and the second through hole 13e. Furthermore, seal tapes 16a are provided at the upper and lower ends of the inlet side ventilation sheet 16. The seal tape 16a seals the space between the upper and lower ends of the inlet ventilation sheet 16 and the triangular indenter 13 so that resin does not enter therebetween.
The entrance side mold release sheet 17 is a perforated mold release sheet (or mold release film), and facilitates mold release of the fiber base material 2 and the triangular indenter 13. The entrance side release sheet 17 is larger than the entrance side ventilation sheet 16.

The cowl plate facing surface 13c of the triangular indenter 13 and the inner circumferential surface of the second plate portion 12b of the cowl plate 12 (specifically, the cowl plate ventilation sheet 20 provided on the inner circumferential surface of the second plate portion 12b) An outlet side ventilation sheet 18 and an outlet side release sheet 19 are provided between them. Specifically, an outlet side ventilation sheet 18 and an outlet side release sheet 19 are provided in order from the triangular indenter 13 side. The triangular indenter 13 and the cowl plate 12 are in contact with each other via an outlet side ventilation sheet 18 and an outlet side release sheet 19.

The outlet side ventilation sheet 18 is a sheet-like member. The outlet side ventilation sheet 18 blocks the resin and allows gas to pass through. The outlet side ventilation sheet 18 is in surface contact with the cowl plate facing surface 13c of the triangular indenter 13. The exit side ventilation sheet 18 covers the exits (openings formed at the ends on the cowl plate 12 side) of the first through hole 13d and the second through hole 13e. Furthermore, seal tapes 18a are provided at the upper and lower ends of the outlet side ventilation sheet 18. The seal tape 18a seals the space between the upper and lower ends of the outlet side ventilation sheet 18 and the triangular indenter 13 so that resin does not enter therebetween.
The exit-side release sheet 19 is a perforated release sheet (or release film) that facilitates the release of the triangular indenter 13 and cowl plate 12 from the mold. The outlet side release sheet 19 is larger than the outlet side ventilation sheet 18.

Next, a method for manufacturing a composite material structure using the manufacturing apparatus will be described.
In this embodiment, a composite material structure is manufactured by RTM (Resin Transfer Molding) molding or VaRTM (Vacuum assisted Resin Transfer Molding) molding.
First, a carbon fiber fabric is cut into a predetermined shape, and the cut carbon fiber fabrics are laminated. A fiber base material 2 having a desired shape (in this embodiment, a long member having a hat-shaped cross section) is manufactured by pressing the laminated carbon fiber fabric against a mold.

Next, the fiber base material 2 is placed on the mold 11. When the fiber base material 2 is placed on the mold 11, the triangular indenter 13 is then placed in a predetermined position. In addition, when arranging the fiber base material 2 and the triangular indenter 13, various ventilation sheets, mold release sheets, and seal tapes are arranged at predetermined positions as necessary. After the triangular indenter 13 is placed at a predetermined position, the fiber base material 2 and the triangular indenter 13 are then covered with the cowl plate 12 from above. In this way, each component is placed in a predetermined position.

Next, liquid resin is supplied from the supply section 14 to the fiber base material 2, and gas is discharged from the space defined by the cowl plate 12 and the mold 11 from the discharge section 15. As a result, the gas contained in the fiber base material 2 is sucked out to the outside of the fiber base material 2, and the resin flows into the inside of the fiber base material 2. In this way, the fiber base material 2 is impregnated with the resin. Note that the gas contained in the portion of the fiber base material 2 that is in contact with the triangular indenter 13 (particularly, the approximately central region in the vertical direction of the web portion 2b) passes through the first through hole 13d and the second through hole 13e. It passes through and is discharged from the discharge section 15.

Once the fiber base material 2 is impregnated with the resin, the resin is then cured. By curing the resin, the composite material structure 1 is completed. Next, the cowl plate 12 is removed, and the triangular indenter 13 is removed from the composite material structure 1. Finally, the composite material structure 1 is removed from the mold 11.
In this embodiment, the composite material structure 1 is manufactured in this manner.

According to this embodiment, the following effects are achieved.
In this embodiment, the triangular indenter 13 is formed with a first through hole 13d and a second through hole 13e that connect the web portion facing surface 13b and the cowl plate facing surface 13c. As a result, when gas is discharged from the discharge part 15, the gas between the triangular indenter 13 and the fiber base material 2 and the gas contained in the portion of the fiber base material 2 that contacts the triangular indenter 13 are transferred to the first through hole 13d and It can flow to the discharge section 15 through the second through hole 13e and be discharged from the discharge section 15. Thereby, the fiber base material 2 (particularly the portion facing the triangular indenter 13) can be suitably impregnated with the resin. Therefore, the quality of the manufactured composite material structure 1 can be improved.

In addition, as a method for discharging the gas contained in the part of the fiber base material that comes into contact with the triangular indenter, the triangular indenter is made hollow, and a ventilation sheet that only allows gas to pass through and blocks the resin is wrapped around the hollow triangular indenter. A method of discharging the gas by causing the gas to flow into a hollow triangular indenter and sucking the gas inside the triangular indenter is also considered. However, with this method, it is difficult to suck the gas inside the hollow triangular indenter to the outside of the bag film or cowl plate, and the structure may become complicated. In particular, when covering a fiber base material with a cowl plate, a complicated structure is required to prevent gas from leaking between the inside of the triangular indenter and the suction device placed outside of the cowl plate. There was a possibility that it would become.
On the other hand, in this embodiment, only the first through hole 13d and the second through hole 13e are formed in the triangular indenter 13, so the structure can be relatively simplified.

In this embodiment, an inlet side ventilation sheet 16 is provided between the fiber base material 2 and the web portion facing surface 13b of the triangular indenter 13 to block resin and allow gas to pass through. As a result, the resin flowing from the fiber base material 2 toward the triangular indenter 13 is blocked by the inlet side ventilation sheet 16. Therefore, it is possible to make it difficult for the resin to enter the first through hole 13d and the second through hole 13e from the web portion facing surface 13b side. Therefore, it is possible to prevent the first through hole 13d and the second through hole 13e from being blocked by the resin.

Further, the inlet side ventilation sheet 16 allows gas to pass through. Thereby, the inlet side ventilation sheet 16 does not prevent gas from being discharged through the first through hole 13d and the second through hole 13e. Therefore, the gas between the triangular indenter 13 and the fiber base material 2 and the gas contained in the portion of the fiber base material 2 that contacts the triangular indenter 13 are preferably discharged through the first through hole 13d and the second through hole 13e. be able to.

In this embodiment, an outlet side ventilation sheet 18 is provided between the cowl plate 12 and the cowl plate facing surface 13c of the triangular indenter 13 to block resin and allow gas to pass through. As a result, the gas that has passed through the first through hole 13d and the second through hole 13e flows between the cowl plate 12 and the triangular indenter 13. The gas flowing between the cowl plate 12 and the triangular indenter 13 is guided to the discharge section 15. In this way, the gas that has passed through the first through hole 13d and the second through hole 13e can be guided to the exhaust section 15 without directly connecting the first through hole 13d and the second through hole 13e to the exhaust section 15. . Therefore, the structure can be simplified compared to the case where a structure is provided in which the first through hole 13d and the second through hole 13e are directly connected to the discharge part 15.

Further, since the resin is blocked by the outlet side ventilation sheet 18, it is possible to make it difficult for the resin to enter the first through hole 13d and the second through hole 13e from the cowl plate facing surface 13c side. Therefore, it is possible to prevent the first through hole 13d and the second through hole 13e from being blocked by the resin.

In this embodiment, the triangular indenter 13 is solid. Thereby, the strength and rigidity of the triangular indenter 13 can be improved compared to the case where the triangular indenter 13 is hollow. Therefore, the size of the triangular indenter 13 can be increased. Therefore, a large composite material structure 1 can be manufactured.
Furthermore, in this embodiment, since the triangular indenter 13 is solid, the triangular indenter 13 can be manufactured more easily than in the case where the triangular indenter 13 is hollow.

Further, in this embodiment, two types of through holes (a first through hole 13d and a second through hole 13e) are formed in the triangular indenter 13. Thereby, even if one of the through holes is blocked, gas can be guided to the discharge portion 15 through the through hole that is not blocked. Therefore, gas can be suitably discharged.

[Modification 1]
Next, a modification of this embodiment will be described using FIG. 2.
This modification differs from the first embodiment in that a recess is formed in the cowl plate facing surface 13c of the triangular indenter 13, and a seal member 30 is provided within the recess. Since other points are the same as those of the first embodiment, the same components are given the same reference numerals and detailed explanation thereof will be omitted.

As shown in FIG. 2, the cowl plate facing surface 13c according to this modification has a recessed portion recessed from the surface. The recess is provided above the first through hole 13d and below the second through hole 13e. A sealing member 30 is provided in each recessed portion and is pressurized and deformed by breaking when the cowl plate facing surface 13c and the cowl plate 12 come into contact with each other. The outlet side ventilation sheet 18 and the outlet side release sheet 19 are provided between the two recesses.

According to this modification, the seal member 30 blocks the resin from flowing toward the space on the exit side of the first through hole 13d and the second through hole 13e. This makes it difficult for the resin to enter the first through hole 13d and the second through hole 13e from the cowl plate facing surface 13c side. Therefore, it is possible to prevent the first through hole 13d and the second through hole 13e from being blocked by the resin.

[Modification 2]
Next, a modification of this embodiment will be described using FIG. 3.
This modification differs from the first embodiment in that a plurality of discharge sections 15 are provided. Since other points are the same as those of the first embodiment, the same components are given the same reference numerals and detailed explanation thereof will be omitted.

As shown in FIG. 3, in this modification, the third plate portion 12c of the cowl plate 12 is also provided with a discharge portion 15. Further, the cowl plate ventilation sheet 20 is divided into a cowl plate ventilation sheet 20a provided on the inner peripheral surface of the second plate portion 12b, and a cowl plate ventilation sheet 20b provided on the inner peripheral surface of the third plate portion 12c. . Furthermore, a sealing tape 20c is provided at the end of each ventilation sheet.

According to this modification, the cowl plate ventilation sheet is divided into the cowl plate ventilation sheet 20a and the cowl plate ventilation sheet 20b, so the length of one cowl plate ventilation sheet is shortened. Thereby, the cowl plate ventilation sheet can be brought into closer contact with the cowl plate 12. Therefore, it is possible to make it difficult for resin to enter between the cowl plate ventilation sheet and the cowl plate 12.

[Second embodiment]
Next, a second embodiment of the present disclosure will be described using FIG. 4.
In this embodiment, the shape of the composite material structure (fiber base material) is different from the first embodiment. Further, this embodiment differs from the first embodiment in that the shapes of the mold, jig, and cowl plate are different due to the change in the shape of the fiber base material. The same components as those in the first embodiment are given the same reference numerals and detailed explanations thereof will be omitted.

As shown in FIG. 4, the manufacturing apparatus 40 according to this embodiment manufactures a composite material structure 41 having a substantially T-shaped cross section. The fiber base material 42 before being impregnated with resin also has a substantially T-shape.

The mold 51 is a flat member. A fiber base material 42 is placed on the upper surface of the mold 51. A plurality of supply units 14 that supply resin to the fiber base material 42 are provided on the lower surface of the mold 51 .

Further, an indenter (jig) 53 is provided so as to correspond to the fiber base material 42 . The indenter 53 covers the fiber base material 42 placed on the upper surface of the mold 51 from above. A through hole 53a is formed in the indenter 53 to connect the surface facing the fiber base material 42 to the surface facing the cowl plate 52. An inlet side ventilation sheet 56 is provided between the fiber base material 42 and the indenter 53.

Further, a cowl plate 52 is provided to cover the indenter 53 from above. The cowl plate 52 has a space formed therein, and the indenter 53 and the fiber base material 42 are provided in this space. Further, a cowl plate ventilation sheet 60 is provided on the inner peripheral surface of the cowl plate 52. An exit side ventilation sheet 58 is provided between the cowl plate 52 and the indenter 53 to cover the exit side opening of the through hole 53a. Further, an outlet side release sheet 59 is provided between the outlet side ventilation sheet 58 and the cowl plate ventilation sheet 60. A discharge portion 15 is provided at the apex of the cowl plate 52.

Also in this embodiment, the gas contained in the fiber base material 42 passes through the through hole 53a and is discharged from the discharge section 15. Therefore, the same effects as the first embodiment described above are achieved.

[Third embodiment]
A third embodiment of the present disclosure will be described below using FIG. 5. This embodiment differs from the second embodiment in that a bag film 71 is provided instead of the cowl plate 52. Other points are similar to the second embodiment, so the same components are given the same reference numerals and detailed explanation thereof will be omitted.
As shown in FIG. 5, in the manufacturing apparatus 70 according to this embodiment, a resin passing film 72 is provided between the mold 51 and the supply section 14.
Further, the manufacturing apparatus 70 according to this embodiment is not provided with an outlet side release film.
The bag film 71 covers the fiber base material 42, the indenter 53, and the mold 51 from above.

This embodiment also provides the same effects as the first and second embodiments.

Note that the present disclosure is not limited to the above-described embodiments, and can be modified as appropriate without departing from the gist thereof.
For example, in each of the above embodiments, a case has been described in which a composite material structure 1 having a hat-shaped cross-sectional shape and a T-shaped composite material structure 41 when cut along a plane perpendicular to the longitudinal direction are manufactured, but the present disclosure is not limited to this. For example, when manufacturing a molded product having a C-shaped, L-shaped, or Z-shaped cross-sectional shape when cut along a plane perpendicular to the longitudinal direction, the manufacturing apparatus and manufacturing method according to the present disclosure may be used.

Further, in the first embodiment, an example in which the fiber base material 2 is covered with the cowl plate 12 has been described, but the present disclosure is not limited thereto. For example, the fiber base material 2 may be covered with a bag film.

The composite material structure manufacturing apparatus and the composite material structure manufacturing method described in the embodiments described above can be understood, for example, as follows.
A composite material structure manufacturing apparatus according to a first aspect of the present disclosure manufactures a composite material structure (1) by impregnating a fiber base material (2) shaped into a predetermined shape with a resin. A manufacturing apparatus (10) for a composite material structure, which includes a space formed inside, a covering part (12) provided in the space that covers the fiber base material, and a resin supplied to the fiber base material. a supply section (14) that discharges gas from the space through a discharge hole (15c) formed in the covering section, and a discharge section (15) that discharges gas from the space through a discharge hole (15c) formed in the covering section; and a jig (13) provided between the fiber base material and the fiber base material that pressurizes the fiber base material by discharging gas from the discharge part, the jig is provided between the fiber base material and the fiber base material facing the fiber base material. A through hole (13d, 13e) is formed which has a facing surface (13b) and a covering part facing surface (13c) that faces the covering part, and connects the fiber base material facing surface and the covering part facing surface. ing.

In the above configuration, a through hole is formed in the jig to connect the fiber base material facing surface and the covering portion facing surface. As a result, when gas is discharged from the discharge part, the gas between the jig and the fiber base material and the gas contained in the part of the fiber base material that comes into contact with the jig flows through the through hole to the discharge part and is discharged. can be discharged from the Thereby, the fiber base material (particularly the portion facing the jig) can be suitably impregnated with the resin. Therefore, the quality of the manufactured composite material structure can be improved.
Furthermore, since only the through holes are formed in the jig, the structure can be relatively simplified.

Furthermore, in the first aspect of the apparatus for manufacturing a composite material structure according to the present disclosure, ventilation is provided between the fiber base material and the surface of the jig facing the fiber base material to block resin and allow gas to pass through. A section (16) is provided.

In the above configuration, a ventilation section is provided between the fiber base material and the surface of the jig that faces the base material, which blocks the resin and allows gas to pass through. Thereby, the resin flowing from the fiber base material toward the jig is blocked by the ventilation section. Therefore, it is possible to make it difficult for the resin to enter the through hole from the side facing the fiber base material. Therefore, it is possible to prevent the through hole from being blocked by the resin.
Additionally, the ventilation section allows gas to pass through. Thereby, the ventilation portion does not hinder the discharge of gas through the through hole. Therefore, the gas between the jig and the fiber base material and the gas contained in the portion of the fiber base material in contact with the jig can be suitably discharged through the through-hole.

Further, in the first aspect or the second aspect, the apparatus for manufacturing a composite material structure according to the present disclosure is arranged such that resin is blocked and gas is passed between the coating portion and the surface of the jig that faces the coating portion. A ventilation section (18) is provided to allow the air to flow.

In the above configuration, a ventilation portion is provided between the covering portion and the surface of the jig that faces the covering portion, which blocks the resin and allows gas to pass through. Thereby, the gas that has passed through the through hole flows between the covering portion and the jig. The gas flowing between the covering part and the jig is guided to the discharge part. In this way, the gas that has passed through the through hole can be guided to the exhaust section without directly connecting the through hole and the exhaust section. Therefore, the structure can be simplified compared to the case where a structure is provided in which the through hole and the discharge part are directly connected.
Furthermore, since the resin is blocked by the ventilation portion, it is possible to make it difficult for the resin to enter the through hole from the side facing the covering portion. Therefore, it is possible to prevent the through hole from being blocked by the resin.

Furthermore, in the apparatus for manufacturing a composite material structure according to the present disclosure, in any one of the first to third aspects, the jig is solid.

In the above configuration, the jig is solid. Thereby, the strength and rigidity of the jig can be improved compared to the case where the jig is hollow. Therefore, the jig can be made larger. Therefore, a large composite material structure can be manufactured.
Further, in the above configuration, since the jig is solid, the jig can be manufactured more easily than when the jig is hollow.

A method for manufacturing a composite material structure according to the present disclosure includes a method for manufacturing a composite material structure (1) by impregnating a fiber base material (2) shaped into a predetermined shape with a resin. A method of manufacturing a composite material structure using a manufacturing apparatus (10), the manufacturing apparatus comprising: a space formed inside, and a covering part (12) provided in the space that covers the fiber base material; , a supply part (14) that supplies resin to the fiber base material; a discharge part (15) that discharges gas from the space through a discharge hole (15c) formed in the covering part; a jig (13) that is provided between the covering part and the fiber base material and pressurizes the fiber base material by discharging gas from the discharge part; , a fiber base material facing surface (13b) facing the fiber base material, and a covering part facing surface (13c) facing the covering part, the fiber base material facing surface and the covering part facing surface having a A connecting through-hole (13d, 13e) is formed, and a step is provided for discharging gas from the discharge section via the through-hole.

1: Composite material structure 2: Fiber base material 2a: Flange portion 2b: Web portion 2c: Cap portion 10: Manufacturing device 11: Mold 11a: First portion 11b: Second portion 11c: Third portion 12: Cowl plate ( covering part)
12a: First plate portion 12b: Second plate portion 12c: Third plate portion 12d: Step portion 13: Triangular indenter (jig)
13a: Flange portion facing surface 13b: Web portion facing surface (fiber base material facing surface)
13c: Cowl plate opposing surface (coated portion opposing surface)
13d: First through hole (through hole)
13e: Second through hole (through hole)
14: Supply section 15: Discharge section 15a: Discharge pipe 15b: Seal section 15c: Discharge hole 16: Inlet side ventilation sheet (ventilation section)
16a: Seal tape 17: Inlet side release sheet 18: Outlet side ventilation sheet 18a: Seal tape 19: Outlet side release sheet 20: Cowl plate ventilation sheet 20a: Cowl plate ventilation sheet 20b: Cowl plate ventilation sheet 20c: Seal tape 21: Cowl plate release sheet 22: Seal tape 30: Seal member 40: Manufacturing equipment 41: Composite material structure 42: Fiber base material 51: Mold 52: Cowl plate 53: Indenter 53a: Through hole 56: Inlet side ventilation sheet 58 : Outlet side ventilation sheet 59 : Outlet side release sheet 60 : Cowl plate ventilation sheet 70 : Manufacturing equipment 71 : Bag film 72 : Resin passing film

Claims (3)

A composite material structure manufacturing device that manufactures a composite material structure by impregnating a fiber base material shaped into a predetermined shape with a resin,
a covering portion having a space formed therein and covering the fiber base material provided in the space;
a supply unit that supplies resin to the fiber base material;
a discharge part that discharges gas from the space through a discharge hole formed in the covering part;
a jig that is provided in the space between the covering part and the fiber base material and pressurizes the fiber base material by discharging gas from the discharge part,
The jig has a fiber base material facing surface that faces the fiber base material, and a covering part facing surface that faces the covering part, and has a through hole that connects the fiber base material facing surface and the covering part facing surface. holes are formed,
The covering portion has a facing portion facing the covering portion facing surface,
The discharge section is provided in the opposing section,
A first ventilation section is provided between the fiber base material and the surface of the jig facing the fiber base material, which blocks resin and allows gas to pass through ,
A manufacturing apparatus for a composite material structure , wherein a second ventilation part is provided between the covering part and a surface of the jig facing the covering part, which blocks resin and allows gas to pass through. The apparatus for manufacturing a composite material structure according to claim 1, wherein the jig is solid. A method for manufacturing a composite structure using a composite structure manufacturing apparatus for manufacturing a composite structure by impregnating a fiber base material shaped into a predetermined shape with a resin, the method comprising:
The manufacturing device includes:
a covering portion having a space formed therein and covering the fiber base material provided in the space;
a supply unit that supplies resin to the fiber base material;
a discharge part that discharges gas from the space through a discharge hole formed in the covering part;
a jig that is provided in the space between the covering part and the fiber base material and pressurizes the fiber base material by discharging gas from the discharge part,
The jig has a fiber base material facing surface that faces the fiber base material, and a covering part facing surface that faces the covering part, and has a through hole that connects the fiber base material facing surface and the covering part facing surface. holes are formed,
The covering portion has a facing portion facing the covering portion facing surface,
The discharge section is provided in the opposing section,
A first ventilation section is provided between the fiber base material and the surface of the jig facing the fiber base material, which blocks resin and allows gas to pass through,
A second ventilation part is provided between the covering part and the surface of the jig facing the covering part, which blocks the resin and allows gas to pass through.
A method for manufacturing a composite material structure, comprising a step of discharging gas from the discharge section through the through hole.